Lower Twin Lakes Dam
New Jersey — Passaic County — Post Brook
Location
| State | New Jersey |
| County | Passaic |
| River | Post Brook |
| Coordinates | 41.00847, -74.29737 |
Physical Characteristics
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 210 ft |
| NID Storage | 128 acre-ft |
| Max Storage | — |
| Surface Area | 40 acres |
Safety Classification
| Hazard Potential | Significant |
| Condition Assessment | Satisfactory |
| EAP Status | Yes |
| Last Inspection | June 23, 2023 |
| Inspection Frequency | 2 |
Dam Information
| Year Completed | 1927 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Pompton Lakes Borough MUA |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.